| molecular analysis of clinical isolates of providencia alcalifaciens. | in an attempt to elucidate the virulence factors and the pathogenic mechanisms of providencia alcalifaciens, 36 isolates identified in 1994-1995 in recife city, brazil were analysed by pcr to investigate the presence of dna sequences homologous to virulence genes described in other invasive enterobacteria, as well as their ability to invade hela cells, their plasmid profiles and antibiotic resistance patterns. the genetic diversity of the isolates was also analysed by rapd-pcr. no homologous seq ... | 2001 | 11192501 |
| recovery and screening for antibiotic susceptibility of potential bacterial pathogens from the oral cavity of shark species involved in attacks on humans in recife, brazil. | the number of incidents involving sharks and humans at beaches in recife, on the north-eastern brazilian coast, is among the highest worldwide. in addition, wound infections in survivors are common; but the nature and risk of the aetiological agents is unknown. in the present study, 81 potential bacterial pathogens were identified in the oral cavity of sharks involved in attacks in recife, and were subjected to antibiotic susceptibility tests using the standardized disc-diffusion method. the maj ... | 2010 | 20413619 |